Ultraman wrote:
Welllll.....after looking in every conceivable place except a cavity search I have given up on finding the errant spark plug wire......not knowing what to do I called MSD and explained my predicament and the guy said no problem they would send out a matching wire today in the mail...no charge at all.....that's good customer service...

I fully expect to find the dumb thing some were sometime so I will have a spare....